If there's one thing we know after four seasons of Below Deck, it's that when you have people living and working together in close quarters at sea, there's bound to be some drama. Of course, some Below Deck crew members have gotten along better than others over the years, and this season, Kelley Johnson and Sierra Storm seem to particularly rub each other the wrong way.

But don't let that seemingly ever-present smile of Sierra's fool you. Kelley told The Daily Dish that he thinks the stress of working on charters has impacted their ability to get along this season. "Oh, Sierra, Sierra, Sierra. Look, she's a really sweet girl. She is. She really means well in everything she does. The problem is if any complication comes in her way or there's a bump in the road, it becomes a way bigger deal," he explained. "And I don't know if it was how she was raised, that she doesn't know how to deal with the stress that's involved with our job, but there's times where it's just too much for her when it shouldn't be anything at all. And unfortunately, we just seem to butt heads way too many times."

One of the biggest showdowns between the yachties so far this season occurred in the latest episode of Below Deck after Kelley accused Sierra of playing games with Kyle Dixon's heart. "He was very upset. He did spend a lot of money to take her out fishing and then she's texting this guy back home. And then she wants him to take her to dinner. And it's like, 'Why are you going to spend more money on her if she's not interested?'" Kelley said. "Unfortunately, Lauren [Burchell] told Sierra I was very upset with her, and I wasn't. I just didn't want him going to dinner. And then that turned... way too big."

But in that instance, Kelley said that he was just looking out for one of his own. "That was my big concern because I'm a very emotional guy. I do get my feelings hurt, as you saw from Season 2. I'm not quite as emotional this time around. But when I see one of my deck crew crying, I'm like, I get feelings, and I'm like, 'OK, well, I'm going to protect you. I'm the boss. Hey, I got you, buddy,'" Kelley said. "Well that ended up blowing up in my face."

Perhaps Kelley could have used one of Sierra's painkillers following the incident.